Java tutorial
/******************************************************************************* * Copyright (c) 2011 Gerd Wuetherich (gerd@gerd-wuetherich.de). * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Gerd Wuetherich (gerd@gerd-wuetherich.de) - initial API and implementation ******************************************************************************/ package org.bundlemaker.core.jdt.internal.parser; import java.util.LinkedList; import java.util.List; import org.bundlemaker.core.BundleMakerCore; import org.bundlemaker.core.common.utils.VMInstallUtils; import org.bundlemaker.core.jdt.parser.CoreParserJdt; import org.bundlemaker.core.project.IProjectContentEntry; import org.bundlemaker.core.project.IProjectDescriptionAwareBundleMakerProject; import org.bundlemaker.core.project.VariablePath; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IProjectDescription; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.resources.WorkspaceJob; import org.eclipse.core.runtime.Assert; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.jdt.core.IClasspathEntry; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.launching.IVMInstall; import org.eclipse.jdt.launching.JavaRuntime; /** * <p> * </p> * * @author Gerd Wütherich (gerd@gerd-wuetherich.de) */ public class JdtProjectHelper { /** * <p> * </p> * * @param bundleMakerProject * @throws CoreException */ public static void setupAssociatedJavaProject(IProjectDescriptionAwareBundleMakerProject project) throws CoreException { try { // step 1: get the associated JDT project IJavaProject javaProject = getAssociatedJavaProject(project); // step 2: 'unset' the class path javaProject.setRawClasspath(null, null); // step 3: create the entries list List<IClasspathEntry> entries = new LinkedList<IClasspathEntry>(); // step 3.1: add the vm path IVMInstall vmInstall = VMInstallUtils.getIVMInstall(project.getProjectDescription().getJRE()); IPath path = JavaRuntime.newJREContainerPath(vmInstall); IClasspathEntry classpathEntry = JavaCore.newContainerEntry(path); entries.add(classpathEntry); // step 3.2: add the binary paths for (IProjectContentEntry projectContent : project.getProjectDescription().getContent()) { // TODO!! IPath sourceRoot = null; if (!projectContent.getSourceRootPaths().isEmpty()) { sourceRoot = projectContent.getSourceRootPaths().toArray(new VariablePath[0])[0] .getResolvedPath(); } // add binary paths for (VariablePath iClasspathEntry : projectContent.getBinaryRootPaths()) { classpathEntry = JavaCore.newLibraryEntry(iClasspathEntry.getResolvedPath(), sourceRoot, null); entries.add(classpathEntry); } } // set the classpath javaProject.setRawClasspath(entries.toArray(new IClasspathEntry[0]), null); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static boolean hasAssociatedJavaProject(IProjectDescriptionAwareBundleMakerProject bundleMakerProject) { return hasAssociatedJavaProject(bundleMakerProject.getProject()); } /** * <p> * </p> * * @param bundleMakerProject * @return */ public static boolean hasAssociatedJavaProject(IProject bundleMakerProject) { // the associatedProjectName String associatedProjectName = getAssociatedJavaProjectName(bundleMakerProject); // if (!ResourcesPlugin.getWorkspace().getRoot().exists(new Path(associatedProjectName))) { return false; } else { try { IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(associatedProjectName); project.open(IResource.HIDDEN, null); IJavaProject javaProject = JavaCore.create(project); try { javaProject.open(null); } catch (JavaModelException e) { throw new RuntimeException(e.getMessage()); } } catch (Exception e) { return false; } return true; } } public static IJavaProject getAssociatedJavaProject( IProjectDescriptionAwareBundleMakerProject bundleMakerProject) { return getAssociatedJavaProject(bundleMakerProject.getProject()); } /** * <p> * </p> * * @param bundleMakerProject * @return */ public static IJavaProject getAssociatedJavaProject(IProject bundleMakerProject) { IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IProject associatedProject = root.getProject(getAssociatedJavaProjectName(bundleMakerProject)); IJavaProject javaProject = JavaCore.create(associatedProject); try { javaProject.open(null); } catch (JavaModelException e) { throw new RuntimeException(e.getMessage()); } return javaProject; } public static IProject getAssociatedJavaProjectAsProject( IProjectDescriptionAwareBundleMakerProject bundleMakerProject) { return getAssociatedJavaProjectAsProject(bundleMakerProject.getProject()); } /** * <p> * </p> * * @param bundleMakerProject * @return */ public static IProject getAssociatedJavaProjectAsProject(IProject bundleMakerProject) { IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IProject associatedProject = root.getProject(getAssociatedJavaProjectName(bundleMakerProject)); return associatedProject; } public static IJavaProject newAssociatedJavaProject( IProjectDescriptionAwareBundleMakerProject bundleMakerProject) throws CoreException { return newAssociatedJavaProject(bundleMakerProject.getProject()); } /** * <p> * </p> * * @param bundleMakerProject * @return * @throws CoreException */ public static IJavaProject newAssociatedJavaProject(IProject bundleMakerProject) throws CoreException { IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IProject associatedProject = root.getProject(getAssociatedJavaProjectName(bundleMakerProject)); if (associatedProject.exists()) { associatedProject.delete(true, null); } Assert.isTrue(!associatedProject.exists()); IProjectDescription description = ResourcesPlugin.getWorkspace() .newProjectDescription(getAssociatedJavaProjectName(bundleMakerProject)); description.setNatureIds(new String[] { JavaCore.NATURE_ID }); associatedProject.create(description, IResource.HIDDEN, null); associatedProject.open(IResource.HIDDEN, null); IJavaProject javaProject = JavaCore.create(associatedProject); associatedProject.setHidden(true); associatedProject.refreshLocal(IResource.DEPTH_INFINITE, null); return javaProject; } /** * <p> * </p> * * @return */ public static IPath makeCanonical(IPath path) { String[] segments = path.segments(); StringBuilder builder = null; for (String segment : segments) { if (builder == null) { builder = new StringBuilder(segment); } else { builder.append("-" + segment); } } return new Path(builder.toString()); } /** * <p> * </p> * * @param bundleMakerProject * @return */ private static String getAssociatedJavaProjectName(IProject project) { return project.getName() + CoreParserJdt.BUNDLEMAKER_JDT_PROJECT_POSTFIX; } public static void deleteAssociatedProjectIfNecessary(final IProject resource) { try { if (resource instanceof IProject && ((IProject) resource).hasNature(BundleMakerCore.NATURE_ID)) { // create a new workspace job WorkspaceJob workspaceJob = new WorkspaceJob("delete") { @Override public IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException { try { IProjectDescriptionAwareBundleMakerProject bundleMakerProject = BundleMakerCore .getBundleMakerProject((IProject) resource); if (JdtProjectHelper.hasAssociatedJavaProject(bundleMakerProject)) { // get the associated java project IProject associatedJavaProject = JdtProjectHelper .getAssociatedJavaProjectAsProject(bundleMakerProject); if (!associatedJavaProject.isOpen()) { // simply delete the project associatedJavaProject.open(null); } associatedJavaProject.delete(true, null); } // return new Status(IStatus.OK, CoreParserJdt.BUNDLE_ID, null); } catch (Exception e) { // TODO return new Status(IStatus.ERROR, CoreParserJdt.BUNDLE_ID, "Could not delete project."); } } }; // schedule the job workspaceJob.schedule(); } } catch (CoreException e) { e.printStackTrace(); } } }